The Windows OS image can be used for installing the Windows operating system or recovering the system to its initial state.
The installation media can be either a DVD or a USB flash drive. This video shows how to create a Windows installation USB.
EC70A/EC70B-SU Compact Fanless Industrial Computer
EC70A-SU/EC70B-SU embedded computers, support excellent computing, -20°C to +60°C temperature, DDR4 onboard, dual Mini PCIe, and industrial I/O interfaces for Industry 4.0 applications.